8(ii)
(a) Which nuclear radiation will travel undeviated in an electric field?
(b) How can one stop the radiations escaping from a nuclear reactor in a nuclear power plant?
(c) Name one internal source of background radiations.
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(a) γ (Gamma) radiation
(b) The nuclear reactor of the power plant must be shielded with thick lead and steel walls.
(c) Radioactive substances such as potassium (K-40), carbon (C-14) and radium present inside our body.